One Shot Practice C language

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//-------Made by Dr. Rodolfo Castello------------------//
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#include <xc.h>
//OSCILLATOR SOURCE AND DIGITAL I/O CONFIGURATION BITS
//====================================================
#pragma config OSC = IRCIO67 // CONFIG1H (0-3) = 0010: INTIO2 oscillator, Internal oscillator block, port function on RA6 and RA7.
#pragma config MCLRE = ON // CONFIG3H.7 = 1: Pin de RESET habilitado y Entrada RE3 desactivado.
#pragma config PBADEN = OFF // CONFIG3H.1 = 0: PORTB.0 -- PORTB.4 as Digital I/O.
#pragma config LVP = OFF // CONFIG3H.2 = 0: Single-Supply ICSP disabled so that PORTB.5 works as Digital I/O.
//PICIT-3 DEBUGGER SETUP CONFIGURATION BITS
//=========================================
#pragma config WDT = OFF // CONFIG2H (0) = 0: Watchdog Timer Disabled.
//GLOBAL VARIABLES
//================
unsigned char ons = 0; // One-shot flag.
unsigned char acc = 0; // Counter.
// GLOBAL COMPILER?S CONSTANTS
//=============================
#define Button1 PORTBbits.RB0
#define Button2 PORTBbits.RB1
#define LED PORTBbits.RB3
//FUNCTION' PROTOTYPE
//===================
void One_Shot(void);
void Reset_One_Shot(void);
void Delay(void);

void main(void){
    //CLOCK FREQUENCY CONFIGURATION
    //============================
    OSCCON = 0x60; // 4 MHz internal oscillator
    //DISABLE PORT's ANALOG FUNCTIONS
    //===============================
    CMCON = 0xFF; // Comparators OFF, to use PORT_Ds LSN
    CVRCONbits.CVREN = 0; // Comparator Voltge Reference Module OFF
    ADCON1 = 0x0F; // All ports as DIGITAL I/O
    //CONFIGURATION OF PORT B
    //=======================
    PORTB = 0x00; // Initialize PORTB
    LATB = 0x00; // Clear PORTB
    TRISBbits.TRISB0 = 1; // PORTB.0 as Input
    TRISBbits.TRISB1 = 1; // PORTB.1 as Input
    TRISBbits.TRISB3 = 0; // PORTB.3 as Output
    while(1){
        if (Button1 == 1) // IF RB0 ON THEN trigger the One-Shot.
            One_Shot();
        if (ons == 1) // IF One-Shot?s Trigger is ON THEN Reset-One-Shot
            Reset_One_Shot();
        if (Button2 == 1){ // IF Reset ON THEN:
            LED = 0; // Turn-OFF LED.
            acc = 0; // Restart Counter.
        }
    }
}

void One_Shot(){
    if (ons == 1) // IF One-Shot has been triggered THEN EXIT.
        return;
    Delay(); // Eliminate Bouncing.
    if (Button1 == 1){ // IF RB0 still ON THEN:
        acc++; // Increase Counter.
        if (acc == 5) // IF Counter = 5 Then Turn-ON LED.
          LED= 1;
        ons = 1; // Turn-ON one-shot flag.
    }
}
void Reset_One_Shot(){
    if (Button1 == 0) // IF RB0 OFF THEN Eliminate Bouncing
        Delay();
    else // ELSE EXIT
        return;
    if (Button1 == 0) // IF RB0 OFF THEN reset one-shot flag.
    ons = 0;
}
void Delay(){
    unsigned char L1REG = 0;
    unsigned char L2REG;
    while(L1REG++ < 13){
        L2REG = 0;
    while(L2REG++ < 255);
    }
}